1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mr_godi [17]
3 years ago
13

Find x round to the nearest tenth

Mathematics
1 answer:
jeka943 years ago
7 0
<h3>Answer: angle X = 70.5 degrees</h3>

=================================================

Work Shown:

Law of Cosines

c^2 = a^2 + b^2 - 2ab*cos(C)

22^2 = 20^2 + 18^2 - 2*20*18*cos(X)

484 = 724 - 720*cos(X)

484 + 720*cos(X) = 724

720*cos(X) = 724 - 484

720*cos(X) = 240

cos(X) = 240/720

cos(X) = 1/3

X = arccos(1/3)

X = 70.528779

X = 70.5

Make sure your calculator is in degree mode.

You might be interested in
Raise 7 to the 5th power, subtract the result from 9, then multiply what you have by c
goblinko [34]
Step 1.) 7^5 = 16,807
Step 2.) 9 - 16,807 = -16,798
Step 3.) -16,798 * c = -16,798c
7 0
3 years ago
What is the difference between advanced calculus and real analysis?
eduard
<span>The content of any course depends on where you take it--- even two courses with the title "real analysis" at different schools can cover different material (or the same material, but at different levels of depth).

But yeah, generally speaking, "real analysis" and "advanced calculus" are synonyms. Schools never offer courses with *both* names, and whichever one they do offer, it is probably a class that covers the subject matter of calculus, but in a way that emphasizes the logical structure of the material (in particular, precise definitions and proofs) over just doing calculation.

My impression is that "advanced calculus" is an "older" name for this topic, and that "real analysis" is a somewhat "newer" name for the same topic. At least, most textbooks currently written in this area seem to have titles with "real analysis" in them, and titles including the phrase "advanced calculus" are less common. (There are a number of popular books with "advanced calculus" in the title, but all of the ones I've seen or used are reprints/updates of books originally written decades ago.)

There have been similar shifts in other course names. What is mostly called "complex analysis" now in course titles and textbooks, used to be called "function theory" (sometimes "analytic function theory" or "complex function theory"), or "complex variables". You still see some courses and textbooks with "variables" in the title, but like "advanced calculus", it seems to be on the way out, and not on the way in. The trend seems to be toward "complex analysis."  hope it helps

</span>
8 0
3 years ago
Principal, $3000; Annual interest rate, 5.5%; tome, 2 years <br> The balance after 2 years is ?
Kisachek [45]

Answer:

simple interest: $3330

compound interest: $6339.08

Step-by-step explanation:

7 0
3 years ago
Complete the table for the given rule.<br> Rule: y = x + 8<br> (there’s and image with the problem.)
borishaifa [10]
<h2><em>Okay so these are the answers from top to bottom.</em></h2><h2><em>x = 2 and y = x + 8 so 2 + 8 = 10.</em></h2><h2><em>x = 0 and y = x + 8 so 0 + 8 = 8.</em></h2><h2><em>x = 4 and y = x + 8 so 4 + 8 = 12.</em></h2><h2><em>10</em></h2><h2><em>8</em></h2><h2><em>12</em></h2><h2><em>Hope this helps and have a great day...!</em></h2>
4 0
3 years ago
Read 2 more answers
Describe real life situations that use parallel lines ?????
Anna71 [15]
A bed making a frame
A tv
A window
These are my answers
5 0
3 years ago
Read 2 more answers
Other questions:
  • Based on the information given in the following problem, compute the gross pay. Hours worked: 46 Regular rate of pay: $7.82 per
    13·1 answer
  • The time it takes people to read a certain book is normally distributed with a mean of 147 minutes and a standard deviation of 1
    15·1 answer
  • All ratios equivalent to 3:4
    12·1 answer
  • What can you say about the discriminant of quadratic equations whose roots are irrational?
    5·1 answer
  • Classify each scale factor as a contraction or an expansion. <br><br> 3/2, 1/3, 4, 2/5, 4/3, 1/4.
    7·1 answer
  • What are the solutions of x2 +6x-6= 10?
    15·1 answer
  • (4+2x)+(3+1x) simplify!
    10·2 answers
  • ANSWER RIGHT NOW PLS!!<br> Add. −12+(−20) Enter your answer in the box.
    14·1 answer
  • What is the area of the 50ft by 100ft yard?
    15·2 answers
  • Which numbers have an absolute value of 4?(you can pick more than one)<br><br> 4<br> -4<br> 2<br> 8
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!